Separator for feeders



June 26, 1923.

B. DECK SEPARATOR FOR FEEDERS 1922 3 Sheets-Sheet l FiledrMay 6.

INVENTOR WITNESS:

ATTORNEY June 26, 1923. 31,4%@3114 A B. DECK S E PARATOR FOR FEEDERS Filed may 6. 1922 :s sheets-sheet 2 1:4 jig A.

WITNESS:

B. DECK June 26, 1923.

SEPARATOR FOR FEEDERS Filed May G; 3 sheets-sheet 5 INVENTOR VMM.

ATTORNEY Patented Junel 26, 192-3.

UNITE ST maar DECK, or WINFIELD, KANSAS.

SEPARATB FOR FEEDJERS.

Application led May 6,

To all whom z't may concern:

Be it known that I, BERT DECK, a citizen of the United States, residing at Winfield, in the county oi Cowley and State ol Kan sas, have invented new and useful Improvements in Separators for Feeders, of which the following is a` specification.

This invention has reference to a sheet separating and moving device for printing presses.

rJlhe primary object of the invention is to produce in combination with the suction feet employed for elevating the upper sheet from the remainder of a ile of sheets to a position Where the sai sheet may be grasped by the grippers, blower feet which may be removably secured on the ordinary suction feet and which will at the proper time inject a blast of air between the upper and the next sheet thereto on the pile so that any tendency of the sticking of the upper sheets by static electricity or other causes will be overcome, andthe accurate removal of the upper sheet positively assured.

The drawings which accompany and form part of this application, illustrate a satistactory embodiment of my improvement reduced to practice, but l wish it understoody that changes may be made in the mechanism described and shown without exceeding the scope of my invent-ion as defined in the apended claims.

ln the drawings Figure 1 is a top plan view showing my improvement arranged upon the end suction l eeton the separator bar of a printing press.

Figure 2 1s a view looking toward the rear of the separator bar, parts being in section.

Figure 8 is a sectional view approximately` on the line 3--3of Figure 2.

Figurev 4t is a sectional view on the line L1-1 of Figure 3.

Figure 5 is a perspective View of the improvement. 'y

Figures 6, 7 and 8 are longitudinal sectional views through the improvement showing the samearranged on varying classes of suction feet.

As the manner in which suction feet on printing presses act to raise the top sheet trom the remainder of a pileI of sheets is well-known in the art, itis not deemed nec-u essaryto enter into 'a detailed description of' such yoperation in this application, especially as the ypresent invention pertains only to an attachment for such suctionA feet. However,

i922. Yseriali No. 558,906.

- the drawings I have illustrated a sufficient portion .of a printing press to disclose the application of the improvement thereon.

I'lhe feed boX contains va floating stock table 1 which is adapted to be automatically raised as the sheets of paper are removed .l therefrom, such raising being effected in the feet are adjustably mounted on the bar 2,

the means for latching the same adjusted beingbroadly indicated by the numeral/8. In accordance with the varying thicknesses of the paper sheets to be raised by the suction feet, the apertures inthe fiat under face ot each foot varies in size and arrangement, as disclosed in Figures 6,- 7 and 8 of the drawings, a suction bein created when the separator bar is move in the usual manner, toward the top sheet on the table 1, the table 1 being also adorded a step by step direction upwardly in the usual manner. The flexible pipesthrough which the air is drawn for creating the vacuum necessary in the suction are indicated, in the drawlngs Aby the numeral 9 respectively, but it has not been deemed necessary to illustrate or describe the manner in which such suction is created, it being well known in the art.

f Each of the suction feet is Vsubstantially rectangular in plan` and it is my purpose to removably attach to the outer or end suction feet 7 blower feet 10, in accordance with this invention. As disclosed in Figure 5 of the drawings, the blower foot 10 is in the nature of across sectionally rectangular hollow member having one end provided with an angle tubular extension llformed at its outer end with a reduced neck porw tion 12 that terminates in a rounded boss or bead 13 for the reception"of the ends of the flexible branch air conducting pipes 1g. As

' 16, the said pipe 16 having its paage con- '.Ilected by a T to the supply pipe 18. I do not wish to be restricted to the precise manner inwhich the air is forced through the shoes 10, nor to the mechanism which regulates or controls the passage of airtherethrough,l it being, however, essential that the air be forced through the feet 10 at the same y interval that the suction is created between the feet 6 and 7 and the top sheet on the tablel. .e

Each foot 10 has its inner straight side provided with any desired number of air outlet apertures 19, and has its upper flat face` provided with a laterally extending metallic strip 20 that terminates in a downwardly directed lip 21. The lip 21 may be arranged at an inward angle, and is designed to engage with one of the sides or edges of .the .foot 7 `to eifectively hold-sthe foot 10 against the outer side or edge of the' said foot 7.

By means of my improvement, air is forcibly ejected at the desired interval between the top sheet'and the remaining sheets on the table 1, so that kdanger of the top sheet adhering to the next sheet will'be positively prevented. n additionto this'the feet 10 `serve as guides for. directing the suctionx -feet to the pile of sheets. The improvement is of an extremely simple nature, and

may be cheaply manufactured and readily applied to any pneumatic sheet separating device for printing presses.

Having described the claim l, The combination with a suction foot for drawing the top sheet from a pile of sheets, of means for injecting blasts of air between the top sheet and the sheet vnext thereto when a suction is createdv between the suction foot and the top sheet, said means comprising an air conducting apertured foot member arranged along one side of the suction foot, a laterally extending plate on said member disposed. over the top of the invention, I

suction foot, and spring means on the end of-vr said plate for contacting the side of the suction foot.

2. The combination with a suction foot for drawing the top sheet from a pile of sheets, of means for injecting blasts of air between the top sheet and` the sheet next thereto when a suction is created between the suction foot and the top sheet, said means comprising a hollow substantially rectangular member having an angle extension terminating in a nipple to which an air conducting hose is attached, said member designed to be arranged along one side of the suction ifo'ot and having spaced apertures therethrough, and clamping means carried by'themember or holding the same against the suction oot. '4

.- In testimony whereof I aiiix my signature.`

BERT DECK. 

